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    <title xmlns:xlink="http://www.w3.org/1999/xlink">eglGetSyncAttrib - EGL Reference Pages</title>
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    <div class="refentry" id="eglGetSyncAttrib">
      <div class="titlepage"/>
      <div class="refnamediv">
        <h2>Name</h2>
        <p>eglGetSyncAttrib — 
            Return an attribute of a sync object
        </p>
      </div>
      <div class="refsynopsisdiv">
        <h2>C Specification</h2>
        <div class="funcsynopsis">
          <table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">
            <tr>
              <td>
                <code class="funcdef">EGLBoolean <strong class="fsfunc">eglGetSyncAttrib</strong>(</code>
              </td>
              <td>(EGLDisplay <var class="pdparam">display</var>, </td>
            </tr>
            <tr>
              <td> </td>
              <td>EGLSync <var class="pdparam">sync</var>, </td>
            </tr>
            <tr>
              <td> </td>
              <td>EGLint <var class="pdparam">attribute</var>, </td>
            </tr>
            <tr>
              <td> </td>
              <td>EGLAttrib *<var class="pdparam">value</var><code>)</code>;</td>
            </tr>
          </table>
          <div class="funcprototype-spacer"> </div>
        </div>
      </div>
      <div class="refsect1" id="parameters">
        <h2>Parameters</h2>
        <div class="variablelist">
          <dl class="variablelist">
            <dt>
              <span class="term">
                <em class="parameter">
                  <code>display</code>
                </em>
              </span>
            </dt>
            <dd>
              <p>
                    Specifies the <abbr class="acronym">EGL</abbr> display connection.
                </p>
            </dd>
            <dt>
              <span class="term">
                <em class="parameter">
                  <code>sync</code>
                </em>
              </span>
            </dt>
            <dd>
              <p>
                    Specifies the sync object to query.
                </p>
            </dd>
            <dt>
              <span class="term">
                <em class="parameter">
                  <code>attribute</code>
                </em>
              </span>
            </dt>
            <dd>
              <p>
                    Specifies the EGL sync object attribute to query.
                </p>
            </dd>
            <dt>
              <span class="term">
                <em class="parameter">
                  <code>value</code>
                </em>
              </span>
            </dt>
            <dd>
              <p>
                    Returns the requested attribute value.
                </p>
            </dd>
          </dl>
        </div>
      </div>
      <div class="refsect1" id="description">
        <h2>Description</h2>
        <p>
            <code class="function">eglGetSyncAttrib</code> is used to query
            attributes of the sync object <em class="parameter"><code>sync</code></em>. Legal
            values for <em class="parameter"><code>attribute</code></em> depend on the type
            of sync object, as shown in table
            <a class="xref" href="#tab-syncattr" title="Table 1.  Attributes accepted by eglGetSyncAttrib">Table 1, “
                Attributes accepted by <code class="function">eglGetSyncAttrib</code>
            ”</a>. Assuming no errors are
            generated, <code class="constant">EGL_TRUE</code> is returned and the
            value of the queried attribute is returned in
            *<em class="parameter"><code>value</code></em>.
        </p>
        <div class="table" id="tab-syncattr">
          <div class="table-title">Table 1. 
                Attributes accepted by <code class="function">eglGetSyncAttrib</code>
            </div>
          <div class="table-contents">
            <table style="border-collapse: collapse; border-top: 2px solid ; border-bottom: 2px solid ; border-left: 2px solid ; border-right: 2px solid ; ">
              <colgroup>
                <col/>
                <col/>
                <col/>
              </colgroup>
              <thead>
                <tr>
                  <th style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">Attribute</th>
                  <th style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">Description</th>
                  <th style="text-align: left; border-bottom: 2px solid ; ">Supported Sync Objects</th>
                </tr>
              </thead>
              <tbody>
                <tr>
                  <td style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">Attribute</td>
                  <td style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">Description</td>
                  <td style="text-align: left; border-bottom: 2px solid ; ">Supported Sync Objects</td>
                </tr>
                <tr>
                  <td style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">
                    <code class="constant">EGL_SYNC_TYPE</code>
                  </td>
                  <td style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">Type of the sync object</td>
                  <td style="text-align: left; border-bottom: 2px solid ; ">All</td>
                </tr>
                <tr>
                  <td style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">
                    <code class="constant">EGL_SYNC_STATUS</code>
                  </td>
                  <td style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">Status of the sync object</td>
                  <td style="text-align: left; border-bottom: 2px solid ; ">All</td>
                </tr>
                <tr>
                  <td style="text-align: left; border-right: 2px solid ; ">
                    <code class="constant">EGL_SYNC_CONDITION</code>
                  </td>
                  <td style="text-align: left; border-right: 2px solid ; ">Signaling condition</td>
                  <td style="text-align: left; ">
                            <code class="constant">EGL_SYNC_FENCE</code> or
                            <code class="constant">EGL_SYNC_CL_EVENT</code>
                        </td>
                </tr>
              </tbody>
            </table>
          </div>
        </div>
        <br class="table-break"/>
      </div>
      <div class="refsect1" id="errors">
        <h2>Errors</h2>
        <p>
            On failure, <code class="function">eglGetSyncAttrib</code> returns
            <code class="constant">EGL_FALSE</code> and *<em class="parameter"><code>value</code></em>
            is not modified.
        </p>
        <p>
            If <em class="parameter"><code>sync</code></em> is not a valid sync object for
            <em class="parameter"><code>display</code></em>, an
            <code class="constant">EGL_BAD_PARAMETER</code> error is generated.
        </p>
        <p>
            If <em class="parameter"><code>attribute</code></em> is not one of the attributes
            in table <a class="xref" href="#tab-syncattr" title="Table 1.  Attributes accepted by eglGetSyncAttrib">Table 1, “
                Attributes accepted by <code class="function">eglGetSyncAttrib</code>
            ”</a>, an
            <code class="constant">EGL_BAD_ATTRIBUTE</code> error is generated.
        </p>
        <p>
            If <em class="parameter"><code>attribute</code></em> is not supported for the
            type of sync object passed in <em class="parameter"><code>sync</code></em>, an
            <code class="constant">EGL_BAD_MATCH</code> error is generated.
        </p>
        <p>
            If <em class="parameter"><code>display</code></em> does not match the display
            passed to <code class="function">eglCreateSync</code> when
            <em class="parameter"><code>sync</code></em> was created, behaviour is undefined.
        </p>
      </div>
      <div class="refsect1" id="notes">
        <h2>Notes</h2>
        <p>
            <code class="function">eglGetSyncAttrib</code> is available only if the
            EGL version is 1.5 or greater.
        </p>
      </div>
      <div class="refsect1" id="seealso">
        <h2>See Also</h2>
        <p>
            <a class="citerefentry" href="eglCreateSync.xhtml"><span class="citerefentry"><span class="refentrytitle">eglCreateSync</span></span></a>
        </p>
      </div>
      <p>
    </p>
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        <p>
            Copyright © 2003-2014 The Khronos Group Inc.
            Permission is hereby granted, free of charge, to any person obtaining a
            copy of this software and/or associated documentation files (the
            "Materials"), to deal in the Materials without restriction, including
            without limitation the rights to use, copy, modify, merge, publish,
            distribute, sublicense, and/or sell copies of the Materials, and to
            permit persons to whom the Materials are furnished to do so, subject to
            the condition that this copyright notice and permission notice shall be included
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